https://www.youtube.com/watch?v=QEf9HNGOAdY&t=212s SF
http://multiversevectors.blogspot.ca/search?q=BART
California high speed rail construction
https://www.youtube.com/watch?v=XsB8yXy4Ezc
https://www.youtube.com/watch?v=f6CC1_CNHuI
cal hs rail
https://www.youtube.com/watch?v=yG3Hlgo61_A
https://www.youtube.com/watch?v=YXJIxHR2gBk
